1.

In the diagram (given below), the broken lines represent the paths followed by particles W, X, Y and Z respectively through the contant field E. The number below the field represent meters. Suppose particle Z has a charge of `+2C`, and is begins and end at rest. If E is `5N//C`, how much work is done on particle ZA. `10 J`B. `20 J`C. `40 J`D. `80 J`

Answer» Correct Answer - B
`W= int F_("ext").ds`
`rArr (5xx2)xx2`


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